Home / 147,511.72-203,587.62-83,834.92

Finding the Fourth Proportional to 147,511.72, 203,587.62 and 83,834.92

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Solution

The fourth proportional to 147,511.72, 203,587.62 and 83,834.92 is: 115,704.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,511.72 : 203,587.62 = 83,834.92 : x
  2. Step 2: Convert to fraction form
    147,511.72/203,587.62 = 83,834.92/x
  3. Step 3: Cross multiply
    147,511.72x = 203,587.62 × 83,834.92
  4. Step 4: Simplify right side
    147,511.72x = 17,067,751,835.69
  5. Step 5: Solve for x
    x = 17,067,751,835.69/147,511.72
  6. Step 6: Final answer
    x = 115,704.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.